Ruby-pin setter



(No Model.)

P. RAMSER.

RUBY PIN S'ETTER.

No. 384,544 Patented June 12,1888

N, PETERS PhMo-Lilhogmphun Waahinglon. ac.

81 1 13 o'vvtoc,

UNITED STAT S PATENT rrrce.

PAUL RAMSER, or DUBUQUE, IOWA.

RU BY-PIN SETTER.

SPECIFICATION forming part of Letters Patent No. 384,544, dated June 12,1888.

Application filed August 27, 1887. Serial No. 248,065.

To all whom it may concern.-

Be it known that I, PAUL RAMSER, a citizen of the United States,residing at Dubuque, in the county of Dubuque and State of Iowa, haveinvented a new and useful Improvement in Ruby-Pin Setters, of which thefollowing is a specification.

My invention relates to an improvement in ruby-pin setters to be used bywatch makers and repairers; and it consists in the peculiar constructionand combination of devices, that will be more fully set forthhereinafter, and particularly pointed out in the claims.

The object of my invention is to provide a tool which is adapted to setthe ruby-pin without the necessity of removing the roller-table from thebalance-staff, and thereby avoid the danger of breaking the pivot on theend of the stafi' in removing the roller-table.

In the accompanying drawings, Figure 1 is an elevation of a ruby-pinsetter embodying my improvements, with a balance-wheel attached theretoand held thereby. Fig. 2 is an enlarged vertical transverse sectionalview taken on the line :0 x of Fig. 1. Fig. 3 is an enlarged elevationof the ruby-pin setter with the balance-wheel removed. Fig.4 is a detailsection on the line y y of Fig. 3.

A represents a shank of suitable length, which has one end bent at rightangles to form a head or jaw, B, from which projects an arin, O, whichextends parallel with the shank A. On one side of the head B is arecess, D, the bottom of which is inclined, as shown.

E represents a sliding jaw,which is fitted on one side of the shank, isadapted to move back and forth thereon, and is guided on the shank andsecured thereto by means of keepers F. The sliding jaw E has alongitudinal recess,G, on one side.

H represents a handle, which is attached to the outer end of the shank,and I represents a coiled extensil e spring,which is placed on the shankand bears between the inner end of the handle and the outer end of thesliding jaw, and moves the latter normally forward, so as to close itagainst the head B.

K represents a combined tweezers and gage, comprising a flat strip ofmetal having a longitudinal slot, L, near one end, and having its outerextremity bifurcated by means of along (N0 model.)

in place therein by means of a set-screw, S,

which works in the slot L and extends through the sliding jaw. The rearend of the tweezers and gage has a laterally-projecting handle, T, bymeans of which it may be turned on the screw S as upon a pivot andadjusted longitudinally on the sliding jaw. The screw serves to clampthe tweezers and gage to the sliding jawat any desired position, as willbe readily understood. In the rear side of the head B and in the frontend of the sliding jaw E are made recesses U, adapted to receive theopposite edges of the roller-table of a balancewheel staff.

The operation of myinvention is as follows: The balance-wheel complete,with staff roller table and hair-spring, is secured in position byhaving the opposite edges of the balancetable clamped between the head Band the spring-actuated sliding jaw E, the spring I serving to hold thesame very firmly and se curely. Care must be taken to properly adjustthe roller-table in the head and jaw, so that the balance wheel will bearranged parallel with the tool. The combined tweezers and gage is thenadjusted by sliding its beveled edge R against the balance-wheelstatfuntil the slit which separates the arms of the tweezers is in line withthe small hole near the side of the roller-table in which the ruby-pinis to be secured. The tweezers and gage is then clamped in this positionby turning the set-screw S,and the ruby-pin is then pressed between thearms of the tweezers into the hole in the roller-table, a small quantityof gum -shellac being first placed in the said hole or opening in therollertable. The projecting end of the arm 0 of the tool, which is madeof suitable metal, is then held over a small fire flame and heated to asufficient degree to transfer heat enough to the roller-table to causethe shellac to flow. This operation does not endanger either thebalance-statf or the delicate hairspring in the least, and consequently,by the use of my improved tool, a watch maker or repairer is eu-- IOOabled to set the ruby-pin without the necessity heretofore existing offirst removing the roller-table from the balance-staff and running therisk of breaking the balance staff in the operation.

Having thus described my invention, I claiml. In a rnby-pin setter forwatch-makers, the combination of the shank A, having the head B, and theprojecting arm 0, for the purpose set forth,with a sliding clamping-jawarranged on the shank, and the combined tweezers and gage secured to theclamping-jaw and movable thereon, substantially as described.

2. The combination, in a ruby-pin setter for watch-makers,of the shankA, having thehcad '3, and the extended arm D, the slidingjaw secured tothe shank, the spring to force the said jaw normally forward toward thehead 13, for the purpose set forth, and the combined tweezers and gagefitted on one side of the sliding jaw and provided with. thelongitudinal slot L, and the set-screw S, working in the said slot andsecured to the sliding jaw, substantially as described.

3. The combination, with a ruby-pin setter having the rigidheadBand thesliding clamping-jaw E, of the tweezers and gage secured to the saidsliding jaw and adjustable thereon, said tweezers and gage having thetweezerarms N and O, the former being provided at its outer end with thecurved guide I,adapted to direct the slitbetween the tweezer-arms ontothe ruby-pin, substantially as described.

In testimony that I claim the foregoing as my own I have hereto afiixedmy signatn re in presence of two witnesses.

PA UL RAMSER.

\Vitnesses:

E. O. WILLGING, H. F. C. SCHNEIDER.

